ipuv3: add driver for sii902x HDMI transceiver

Signed-off-by: Jason Chen <b02280@freescale.com>

4 files changed, 1326 insertions, 0 deletions

diff --git a/drivers/video/mxc/Kconfig b/drivers/video/mxc/Kconfig
index ae61d7c1422..2d34aa85129 100644
--- a/drivers/video/mxc/Kconfig
+++ b/drivers/video/mxc/Kconfig
@@ -23,3 +23,7 @@ config FB_MXC_TVOUT_TVE
 	tristate "MXC TVE TV Out Encoder"
 	depends on FB_MXC_SYNC_PANEL
 	depends on MXC_IPU_V3
+
+config FB_MXC_SII902X
+	depends on FB_MXC_SYNC_PANEL
+	tristate "Si Image SII9022 DVI/HDMI Interface Chip"
diff --git a/drivers/video/mxc/Makefile b/drivers/video/mxc/Makefile
index 41c8bc787cd..4462f9543ae 100644
--- a/drivers/video/mxc/Makefile
+++ b/drivers/video/mxc/Makefile
@@ -1,3 +1,4 @@
 obj-$(CONFIG_FB_MXC_TVOUT_TVE)	+= tve.o
+obj-$(CONFIG_FB_MXC_SII902X)	+= mxcfb_sii902x.o
 obj-$(CONFIG_FB_MODE_HELPERS)	+= mxc_edid.o
 obj-$(CONFIG_FB_MXC_SYNC_PANEL)	+= mxc_dispdrv.o mxc_ipuv3_fb.o
diff --git a/drivers/video/mxc/mxcfb_sii902x.c b/drivers/video/mxc/mxcfb_sii902x.c
new file mode 100644
index 00000000000..17ce8fca68b
--- /dev/null
+++ b/drivers/video/mxc/mxcfb_sii902x.c
@@ -0,0 +1,1307 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxcfb_sii902x.c
+ *
+ * @brief MXC Frame buffer driver for SII902x
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/i2c.h>
+#include <linux/ipu.h>
+#include <linux/mxcfb.h>
+#include <linux/fsl_devices.h>
+#include <linux/interrupt.h>
+#include <linux/uaccess.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include "mxc_edid.h"
+#include "mxc_dispdrv.h"
+
+#define DISPDRV_SII	"hdmi"
+
+#define TPI_PIX_CLK_LSB                 (0x00)
+#define TPI_PIX_CLK_MSB                 (0x01)
+#define TPI_VERT_FREQ_LSB               (0x02)
+#define TPI_VERT_FREQ_MSB               (0x03)
+#define TPI_TOTAL_PIX_LSB               (0x04)
+#define TPI_TOTAL_PIX_MSB         	(0x05)
+#define TPI_TOTAL_LINES_LSB		(0x06)
+#define TPI_TOTAL_LINES_MSB		(0x07)
+#define TPI_PIX_REPETITION              (0x08)
+#define TPI_INPUT_FORMAT_REG            (0x09)
+#define TPI_OUTPUT_FORMAT_REG           (0x0A)
+
+#define TPI_AVI_BYTE_0                  (0x0C)
+#define TPI_AVI_BYTE_1                  (0x0D)
+#define TPI_AVI_BYTE_2                  (0x0E)
+#define TPI_AVI_BYTE_3                  (0x0F)
+#define TPI_AVI_BYTE_4                  (0x10)
+#define TPI_AVI_BYTE_5                  (0x11)
+
+#define TPI_END_TOP_BAR_LSB             (0x12)
+#define TPI_END_TOP_BAR_MSB             (0x13)
+
+#define TPI_START_BTM_BAR_LSB           (0x14)
+#define TPI_START_BTM_BAR_MSB           (0x15)
+
+#define TPI_END_LEFT_BAR_LSB            (0x16)
+#define TPI_END_LEFT_BAR_MSB            (0x17)
+
+#define TPI_END_RIGHT_BAR_LSB           (0x18)
+#define TPI_END_RIGHT_BAR_MSB           (0x19)
+
+#define TPI_SYSTEM_CONTROL_DATA_REG	(0x1A)
+#define TPI_DEVICE_ID			(0x1B)
+#define TPI_DEVICE_REV_ID		(0x1C)
+#define TPI_RESERVED2			(0x1D)
+#define TPI_DEVICE_POWER_STATE_CTRL_REG	(0x1E)
+
+#define TPI_I2S_EN                      (0x1F)
+#define TPI_I2S_IN_CFG                  (0x20)
+#define TPI_I2S_CHST_0                  (0x21)
+#define TPI_I2S_CHST_1                  (0x22)
+#define TPI_I2S_CHST_2                  (0x23)
+#define TPI_I2S_CHST_3                  (0x24)
+#define TPI_I2S_CHST_4                  (0x25)
+
+#define TPI_AUDIO_HANDLING              (0x25)
+#define TPI_AUDIO_INTERFACE_REG         (0x26)
+#define TPI_AUDIO_SAMPLE_CTRL           (0x27)
+
+#define TPI_INTERRUPT_ENABLE_REG	(0x3C)
+#define TPI_INTERRUPT_STATUS_REG	(0x3D)
+
+#define TPI_INTERNAL_PAGE_REG		0xBC
+#define TPI_INDEXED_OFFSET_REG		0xBD
+#define TPI_INDEXED_VALUE_REG		0xBE
+
+#define MISC_INFO_FRAMES_CTRL           (0xBF)
+#define MISC_INFO_FRAMES_TYPE           (0xC0)
+#define EN_AND_RPT_AUDIO                0xC2
+#define DISABLE_AUDIO                   0x02
+
+#define TPI_ENABLE			(0xC7)
+
+#define INDEXED_PAGE_0		0x01
+#define INDEXED_PAGE_1		0x02
+#define INDEXED_PAGE_2		0x03
+
+#define HOT_PLUG_EVENT          0x01
+#define RX_SENSE_EVENT          0x02
+#define HOT_PLUG_STATE          0x04
+#define RX_SENSE_STATE          0x08
+
+#define OUTPUT_MODE_MASK	(0x01)
+#define OUTPUT_MODE_DVI		(0x00)
+#define OUTPUT_MODE_HDMI	(0x01)
+
+#define LINK_INTEGRITY_MODE_MASK        0x40
+#define LINK_INTEGRITY_STATIC           (0x00)
+#define LINK_INTEGRITY_DYNAMIC          (0x40)
+
+#define TMDS_OUTPUT_CONTROL_MASK	0x10
+#define TMDS_OUTPUT_CONTROL_ACTIVE      (0x00)
+#define TMDS_OUTPUT_CONTROL_POWER_DOWN  (0x10)
+
+#define AV_MUTE_MASK                    0x08
+#define AV_MUTE_NORMAL                  (0x00)
+#define AV_MUTE_MUTED                   (0x08)
+
+#define TX_POWER_STATE_MASK             0x3
+#define TX_POWER_STATE_D0               (0x00)
+#define TX_POWER_STATE_D1               (0x01)
+#define TX_POWER_STATE_D2               (0x02)
+#define TX_POWER_STATE_D3               (0x03)
+
+#define AUDIO_MUTE_MASK                  0x10
+#define AUDIO_MUTE_NORMAL                (0x00)
+#define AUDIO_MUTE_MUTED                 (0x10)
+
+#define AUDIO_SEL_MASK                   0xC0
+#define AUD_IF_SPDIF                     0x40
+#define AUD_IF_I2S                       0x80
+#define AUD_IF_DSD                       0xC0
+#define AUD_IF_HBR                       0x04
+
+#define REFER_TO_STREAM_HDR		0x00
+
+#define AUD_PASS_BASIC      0x00
+#define AUD_PASS_ALL        0x01
+#define AUD_DOWN_SAMPLE     0x02
+#define AUD_DO_NOT_CHECK    0x03
+
+#define BITS_IN_RGB         0x00
+#define BITS_IN_YCBCR444    0x01
+#define BITS_IN_YCBCR422    0x02
+
+#define BITS_IN_AUTO_RANGE  0x00
+#define BITS_IN_FULL_RANGE  0x04
+#define BITS_IN_LTD_RANGE   0x08
+
+#define BIT_EN_DITHER_10_8  0x40
+#define BIT_EXTENDED_MODE   0x80
+
+#define SII_EDID_LEN		512
+#define SIZE_AVI_INFOFRAME	0x0E
+#define SIZE_AUDIO_INFOFRAME    0x0F
+
+#define _4_To_3                 0x10
+#define _16_To_9                0x20
+#define SAME_AS_AR              0x08
+
+struct sii902x_data {
+	struct platform_device *pdev;
+	struct i2c_client *client;
+	struct mxc_dispdrv_entry *disp_hdmi;
+	struct regulator *io_reg;
+	struct regulator *analog_reg;
+	struct delayed_work det_work;
+	struct fb_info *fbi;
+	struct mxc_edid_cfg edid_cfg;
+	bool cable_plugin;
+	bool rx_powerup;
+	bool need_mode_change;
+	u8 edid[SII_EDID_LEN];
+	struct notifier_block nb;
+
+	u8 power_state;
+	u8 tpivmode[3];
+	u8 pixrep;
+
+	/* SII902x video setting:
+	 * 1. hdmi video fmt:
+	 * 	0 = CEA-861 VIC; 1 = HDMI_VIC; 2 = 3D
+	 * 2. vic: video mode index
+	 * 3. aspect ratio:
+	 * 	4x3 or 16x9
+	 * 4. color space:
+	 *	0 = RGB; 1 = YCbCr4:4:4; 2 = YCbCr4:2:2_16bits;
+	 *	3 = YCbCr4:2:2_8bits;4 = xvYCC4:4:4
+	 * 5. color depth:
+	 *	0 = 8bits; 1 = 10bits; 2 = 12bits; 3 = 16bits
+	 * 6. colorimetry:
+	 *	0 = 601; 1 = 709
+	 * 7. syncmode:
+	 * 	0 = external HS/VS/DE; 1 = external HS/VS and internal DE;
+	 *	2 = embedded sync
+	 */
+#define VMD_HDMIFORMAT_CEA_VIC                  0x00
+#define VMD_HDMIFORMAT_HDMI_VIC                 0x01
+#define VMD_HDMIFORMAT_3D                       0x02
+#define VMD_HDMIFORMAT_PC                       0x03
+	u8 hdmi_vid_fmt;
+	u8 vic;
+#define VMD_ASPECT_RATIO_4x3                    0x01
+#define VMD_ASPECT_RATIO_16x9                   0x02
+	u8 aspect_ratio;
+#define RGB			0
+#define YCBCR444		1
+#define YCBCR422_16BITS		2
+#define YCBCR422_8BITS		3
+#define XVYCC444		4
+	u8 icolor_space;
+	u8 ocolor_space;
+#define VMD_COLOR_DEPTH_8BIT                    0x00
+#define VMD_COLOR_DEPTH_10BIT                   0x01
+#define VMD_COLOR_DEPTH_12BIT                   0x02
+#define VMD_COLOR_DEPTH_16BIT                   0x03
+	u8 color_depth;
+#define COLORIMETRY_601		0
+#define COLORIMETRY_709		1
+	u8 colorimetry;
+#define EXTERNAL_HSVSDE		0
+#define INTERNAL_DE             1
+#define EMBEDDED_SYNC           2
+	u8 syncmode;
+	u8 threeDstruct;
+	u8 threeDextdata;
+
+#define AMODE_I2S               0
+#define AMODE_SPDIF             1
+#define AMODE_HBR               2
+#define AMODE_DSD               3
+	u8 audio_mode;
+#define ACHANNEL_2CH            1
+#define ACHANNEL_3CH            2
+#define ACHANNEL_4CH            3
+#define ACHANNEL_5CH            4
+#define ACHANNEL_6CH            5
+#define ACHANNEL_7CH            6
+#define ACHANNEL_8CH            7
+	u8 audio_channels;
+	u8 audiofs;
+	u8 audio_word_len;
+	u8 audio_i2s_fmt;
+};
+
+static __attribute__ ((unused)) void dump_regs(struct sii902x_data *sii902x,
+					u8 reg, int len)
+{
+	u8 buf[50];
+	int i;
+
+	i2c_smbus_read_i2c_block_data(sii902x->client, reg, len, buf);
+	for (i = 0; i < len; i++)
+		dev_dbg(&sii902x->client->dev, "reg[0x%02X]: 0x%02X\n",
+				i+reg, buf[i]);
+}
+
+static ssize_t sii902x_show_name(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sii902x_data *sii902x = dev_get_drvdata(dev);
+
+	strcpy(buf, sii902x->fbi->fix.id);
+	sprintf(buf+strlen(buf), "\n");
+
+	return strlen(buf);
+}
+
+static DEVICE_ATTR(fb_name, S_IRUGO, sii902x_show_name, NULL);
+
+static ssize_t sii902x_show_state(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sii902x_data *sii902x = dev_get_drvdata(dev);
+
+	if (sii902x->cable_plugin == false)
+		strcpy(buf, "plugout\n");
+	else
+		strcpy(buf, "plugin\n");
+
+	return strlen(buf);
+}
+
+static DEVICE_ATTR(cable_state, S_IRUGO, sii902x_show_state, NULL);
+
+static ssize_t sii902x_show_edid(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct sii902x_data *sii902x = dev_get_drvdata(dev);
+	int i, j, len = 0;
+
+	for (j = 0; j < SII_EDID_LEN/16; j++) {
+		for (i = 0; i < 16; i++)
+			len += sprintf(buf+len, "0x%02X ",
+					sii902x->edid[j*16 + i]);
+		len += sprintf(buf+len, "\n");
+	}
+
+	return len;
+}
+
+static DEVICE_ATTR(edid, S_IRUGO, sii902x_show_edid, NULL);
+
+/*------------------------------------------------------------------------------
+ * Function Description: Write "0" to all bits in TPI offset "Offset" that are set
+ *                 to "1" in "Pattern"; Leave all other bits in "Offset"
+ *                 unchanged.
+ *-----------------------------------------------------------------------------
+ */
+void read_clr_write_tpi(struct i2c_client *client, u8 offset, u8 mask)
+{
+	u8 tmp;
+
+	tmp = i2c_smbus_read_byte_data(client, offset);
+	tmp &= ~mask;
+	i2c_smbus_write_byte_data(client, offset, tmp);
+}
+
+/*------------------------------------------------------------------------------
+ * Function Description: Write "1" to all bits in TPI offset "Offset" that are set
+ *                 to "1" in "Pattern"; Leave all other bits in "Offset"
+ *                 unchanged.
+ *-----------------------------------------------------------------------------
+ */
+void read_set_write_tpi(struct i2c_client *client, u8 offset, u8 mask)
+{
+	u8 tmp;
+
+	tmp = i2c_smbus_read_byte_data(client, offset);
+	tmp |= mask;
+	i2c_smbus_write_byte_data(client, offset, tmp);
+}
+
+/*------------------------------------------------------------------------------
+ * Function Description: Write "Value" to all bits in TPI offset "Offset" that are set
+ *                 to "1" in "Mask"; Leave all other bits in "Offset"
+ *                 unchanged.
+ *----------------------------------------------------------------------------
+ */
+void read_modify_tpi(struct i2c_client *client, u8 offset, u8 mask, u8 value)
+{
+	u8 tmp;
+
+	tmp = i2c_smbus_read_byte_data(client, offset);
+	tmp &= ~mask;
+	tmp |= (value & mask);
+	i2c_smbus_write_byte_data(client, offset, tmp);
+}
+
+/*------------------------------------------------------------------------------
+ * Function Description: Read an indexed register value
+ *                 Write:
+ *                     1. 0xBC => Internal page num
+ *                     2. 0xBD => Indexed register offset
+ *                 Read:
+ *                     3. 0xBE => Returns the indexed register value
+ *----------------------------------------------------------------------------
+ */
+int read_idx_reg(struct i2c_client *client, u8 page, u8 regoffset)
+{
+	i2c_smbus_write_byte_data(client, TPI_INTERNAL_PAGE_REG, page);
+	i2c_smbus_write_byte_data(client, TPI_INDEXED_OFFSET_REG, regoffset);
+	return i2c_smbus_read_byte_data(client, TPI_INDEXED_VALUE_REG);
+}
+
+/*------------------------------------------------------------------------------
+ * Function Description: Write a value to an indexed register
+ *
+ *                  Write:
+ *                      1. 0xBC => Internal page num
+ *                      2. 0xBD => Indexed register offset
+ *                      3. 0xBE => Set the indexed register value
+ *------------------------------------------------------------------------------
+ */
+void write_idx_reg(struct i2c_client *client, u8 page, u8 regoffset, u8 regval)
+{
+	i2c_smbus_write_byte_data(client, TPI_INTERNAL_PAGE_REG, page);
+	i2c_smbus_write_byte_data(client, TPI_INDEXED_OFFSET_REG, regoffset);
+	i2c_smbus_write_byte_data(client, TPI_INDEXED_VALUE_REG, regval);
+}
+
+/*------------------------------------------------------------------------------
+ * Function Description: Write "Value" to all bits in TPI offset "Offset" that are set
+ *                 to "1" in "Mask"; Leave all other bits in "Offset"
+ *                 unchanged.
+ *----------------------------------------------------------------------------
+ */
+void read_modify_idx_reg(struct i2c_client *client, u8 page, u8 regoffset, u8 mask, u8 value)
+{
+	u8 tmp;
+
+	i2c_smbus_write_byte_data(client, TPI_INTERNAL_PAGE_REG, page);
+	i2c_smbus_write_byte_data(client, TPI_INDEXED_OFFSET_REG, regoffset);
+	tmp = i2c_smbus_read_byte_data(client, TPI_INDEXED_VALUE_REG);
+	tmp &= ~mask;
+	tmp |= (value & mask);
+	i2c_smbus_write_byte_data(client, TPI_INDEXED_VALUE_REG, tmp);
+}
+
+static void sii902x_set_powerstate(struct sii902x_data *sii902x, u8 state)
+{
+	if (sii902x->power_state != state) {
+		read_modify_tpi(sii902x->client, TPI_DEVICE_POWER_STATE_CTRL_REG,
+				TX_POWER_STATE_MASK, state);
+		sii902x->power_state = state;
+	}
+}
+
+static void sii902x_setAVI(struct sii902x_data *sii902x)
+{
+	u8 avi_data[SIZE_AVI_INFOFRAME];
+	u8 tmp;
+	int i;
+
+	dev_dbg(&sii902x->client->dev, "set AVI frame\n");
+
+	memset(avi_data, 0, SIZE_AVI_INFOFRAME);
+
+	if (sii902x->edid_cfg.cea_ycbcr444)
+		tmp = 2;
+	else if (sii902x->edid_cfg.cea_ycbcr422)
+		tmp = 1;
+	else
+		tmp = 0;
+
+	/* AVI byte1: Y1Y0 (output format) */
+	avi_data[1] = (tmp << 5) & 0x60;
+	/* A0 = 1; Active format identification data is present in the AVI InfoFrame.
+	 * S1:S0 = 00;
+	 */
+	avi_data[1] |= 0x10;
+
+	if (sii902x->ocolor_space == XVYCC444) {
+		avi_data[2] = 0xC0;
+		if (sii902x->colorimetry == COLORIMETRY_601)
+			avi_data[3] &= ~0x70;
+		else if (sii902x->colorimetry == COLORIMETRY_709)
+			avi_data[3] = (avi_data[3] & ~0x70) | 0x10;
+	} else if (sii902x->ocolor_space != RGB) {
+		if (sii902x->colorimetry == COLORIMETRY_709)
+			avi_data[2] = 0x80;/* AVI byte2: C1C0*/
+		else if (sii902x->colorimetry == COLORIMETRY_601)
+			avi_data[2] = 0x40;/* AVI byte2: C1C0 */
+	} else {/* Carries no data */
+		/* AVI Byte2: C1C0 */
+		avi_data[2] &= ~0xc0; /* colorimetry = 0 */
+		avi_data[3] &= ~0x70; /* Extended colorimetry = 0 */
+	}
+
+	avi_data[4] = sii902x->vic;
+
+	/*  Set the Aspect Ration info into the Infoframe Byte 2 */
+	if (sii902x->aspect_ratio == VMD_ASPECT_RATIO_16x9)
+		avi_data[2] |= _16_To_9; /* AVI Byte2: M1M0 */
+	else
+		avi_data[2] |= _4_To_3;
+
+       avi_data[2] |= SAME_AS_AR;  /* AVI Byte2: R3..R1 - Set to "Same as Picture Aspect Ratio" */
+       avi_data[5] = sii902x->pixrep; /* AVI Byte5: Pixel Replication - PR3..PR0 */
+
+       /* Calculate AVI InfoFrame ChecKsum */
+       avi_data[0] = 0x82 + 0x02 + 0x0D;
+       for (i = 1; i < SIZE_AVI_INFOFRAME; i++)
+	       avi_data[0] += avi_data[i];
+       avi_data[0] = 0x100 - avi_data[0];
+
+       /* Write the Inforframe data to the TPI Infoframe registers */
+	for (i = 0; i < SIZE_AVI_INFOFRAME; i++)
+		i2c_smbus_write_byte_data(sii902x->client,
+				TPI_AVI_BYTE_0 + i, avi_data[i]);
+
+	dump_regs(sii902x, TPI_AVI_BYTE_0, SIZE_AVI_INFOFRAME);
+}
+
+#define TYPE_AUDIO_INFOFRAMES       0x84
+#define AUDIO_INFOFRAMES_VERSION    0x01
+#define AUDIO_INFOFRAMES_LENGTH     0x0A
+/*------------------------------------------------------------------------------
+* Function Description: Load Audio InfoFrame data into registers and send to sink
+*
+* Accepts: (1) Channel count
+*              (2) speaker configuration per CEA-861D Tables 19, 20
+*              (3) Coding type: 0x09 for DSD Audio. 0 (refer to stream header) for all the rest
+*              (4) Sample Frequency. Non zero for HBR only
+*              (5) Audio Sample Length. Non zero for HBR only.
+*------------------------------------------------------------------------------
+*/
+static void  sii902x_setAIF(struct sii902x_data *sii902x,
+		u8 codingtype, u8 sample_size, u8 sample_freq,
+		u8 speaker_cfg)
+{
+	u8 aif_data[SIZE_AUDIO_INFOFRAME];
+	u8 channel_count = sii902x->audio_channels & 0x07;
+	int i;
+
+	dev_dbg(&sii902x->client->dev, "set AIF frame\n");
+
+	memset(aif_data, 0, SIZE_AUDIO_INFOFRAME);
+
+	/*  Disbale MPEG/Vendor Specific InfoFrames */
+	i2c_smbus_write_byte_data(sii902x->client, MISC_INFO_FRAMES_CTRL, DISABLE_AUDIO);
+
+	aif_data[0] = TYPE_AUDIO_INFOFRAMES;
+	aif_data[1] = AUDIO_INFOFRAMES_VERSION;
+	aif_data[2] = AUDIO_INFOFRAMES_LENGTH;
+	/* Calculate checksum - 0x84 + 0x01 + 0x0A */
+	aif_data[3] = TYPE_AUDIO_INFOFRAMES +
+		AUDIO_INFOFRAMES_VERSION + AUDIO_INFOFRAMES_LENGTH;
+
+	aif_data[4] = channel_count; /* 0 for "Refer to Stream Header" or for 2 Channels. 0x07 for 8 Channels*/
+	aif_data[4] |= (codingtype << 4); /* 0xC7[7:4] == 0b1001 for DSD Audio */
+	aif_data[5] = ((sample_freq & 0x07) << 2) | (sample_size & 0x03);
+	aif_data[7] = speaker_cfg;
+
+	for (i = 4; i < SIZE_AUDIO_INFOFRAME; i++)
+		aif_data[3] += aif_data[i];
+
+	aif_data[3] = 0x100 - aif_data[3];
+
+	/* Re-enable Audio InfoFrame transmission and repeat */
+	i2c_smbus_write_byte_data(sii902x->client, MISC_INFO_FRAMES_CTRL, EN_AND_RPT_AUDIO);
+
+	for (i = 0; i < SIZE_AUDIO_INFOFRAME; i++)
+		i2c_smbus_write_byte_data(sii902x->client,
+				MISC_INFO_FRAMES_TYPE + i, aif_data[i]);
+
+	dump_regs(sii902x, MISC_INFO_FRAMES_TYPE, SIZE_AUDIO_INFOFRAME);
+}
+
+static void sii902x_setaudio(struct sii902x_data *sii902x)
+{
+	dev_dbg(&sii902x->client->dev, "set audio\n");
+
+	/* mute audio */
+	read_modify_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG,
+			AUDIO_MUTE_MASK, AUDIO_MUTE_MUTED);
+	if (sii902x->audio_mode == AMODE_I2S) {
+		read_modify_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG,
+				AUDIO_SEL_MASK, AUD_IF_I2S);
+		i2c_smbus_write_byte_data(sii902x->client, TPI_AUDIO_HANDLING,
+				0x08 | AUD_DO_NOT_CHECK);
+	} else {
+		read_modify_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG,
+				AUDIO_SEL_MASK, AUD_IF_SPDIF);
+		i2c_smbus_write_byte_data(sii902x->client, TPI_AUDIO_HANDLING,
+				AUD_PASS_BASIC);
+	}
+
+	if (sii902x->audio_channels == ACHANNEL_2CH)
+		read_clr_write_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG, 0x20);
+	else
+		read_set_write_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG, 0x20);
+
+	if (sii902x->audio_mode == AMODE_I2S) {
+		/* I2S - Map channels */
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_EN, 0x80);
+
+		if (sii902x->audio_channels > ACHANNEL_2CH)
+			i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_EN, 0x91);
+
+		if (sii902x->audio_channels > ACHANNEL_4CH)
+			i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_EN, 0xA2);
+
+		if (sii902x->audio_channels > ACHANNEL_6CH)
+			i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_EN, 0xB3);
+
+		/* I2S - Stream Header Settings */
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_CHST_0, 0x00);
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_CHST_1, 0x00);
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_CHST_2, 0x00);
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_CHST_3, sii902x->audiofs);
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_CHST_4,
+					(sii902x->audiofs << 4) | sii902x->audio_word_len);
+
+		/* added for 16bit auido noise issue */
+		write_idx_reg(sii902x->client, INDEXED_PAGE_1, 0x24, sii902x->audio_word_len);
+
+		/* I2S - Input Configuration */
+		i2c_smbus_write_byte_data(sii902x->client, TPI_I2S_IN_CFG, sii902x->audio_i2s_fmt);
+	}
+
+	i2c_smbus_write_byte_data(sii902x->client, TPI_AUDIO_SAMPLE_CTRL, REFER_TO_STREAM_HDR);
+
+	sii902x_setAIF(sii902x, REFER_TO_STREAM_HDR, REFER_TO_STREAM_HDR, REFER_TO_STREAM_HDR, 0x00);
+
+	/* unmute audio */
+	read_modify_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG, AUDIO_MUTE_MASK, AUDIO_MUTE_NORMAL);
+}
+
+static void sii902x_setup(struct sii902x_data *sii902x, struct fb_info *fbi)
+{
+	u16 data[4];
+	u32 refresh;
+	u8 *tmp;
+	mm_segment_t old_fs;
+	unsigned int fmt;
+	int i;
+
+	dev_dbg(&sii902x->client->dev, "setup..\n");
+
+	sii902x->vic = mxc_edid_var_to_vic(&fbi->var);
+
+	/* set TPI video mode */
+	data[0] = PICOS2KHZ(fbi->var.pixclock) / 10;
+	data[2] = fbi->var.hsync_len + fbi->var.left_margin +
+		  fbi->var.xres + fbi->var.right_margin;
+	data[3] = fbi->var.vsync_len + fbi->var.upper_margin +
+		  fbi->var.yres + fbi->var.lower_margin;
+	refresh = data[2] * data[3];
+	refresh = (PICOS2KHZ(fbi->var.pixclock) * 1000) / refresh;
+	data[1] = refresh * 100;
+	tmp = (u8 *)data;
+	for (i = 0; i < 8; i++)
+		i2c_smbus_write_byte_data(sii902x->client, i, tmp[i]);
+
+	dump_regs(sii902x, 0, 8);
+
+	if (fbi->fbops->fb_ioctl) {
+		old_fs = get_fs();
+		set_fs(KERNEL_DS);
+		fbi->fbops->fb_ioctl(fbi, MXCFB_GET_DIFMT, (unsigned long)&fmt);
+		set_fs(old_fs);
+		if (fmt == IPU_PIX_FMT_VYU444) {
+			sii902x->icolor_space = YCBCR444;
+			dev_dbg(&sii902x->client->dev, "input color space YUV\n");
+		} else {
+			sii902x->icolor_space = RGB;
+			dev_dbg(&sii902x->client->dev, "input color space RGB\n");
+		}
+	}
+
+	/* reg 0x08: input bus/pixel: full pixel wide (24bit), rising edge */
+	sii902x->tpivmode[0] = 0x70;
+	/* reg 0x09: Set input format */
+	if (sii902x->icolor_space == RGB)
+		sii902x->tpivmode[1] =
+			(((BITS_IN_RGB | BITS_IN_AUTO_RANGE) & ~BIT_EN_DITHER_10_8) & ~BIT_EXTENDED_MODE);
+	else if (sii902x->icolor_space == YCBCR444)
+		sii902x->tpivmode[1] =
+			(((BITS_IN_YCBCR444 | BITS_IN_AUTO_RANGE) & ~BIT_EN_DITHER_10_8) & ~BIT_EXTENDED_MODE);
+	else if ((sii902x->icolor_space == YCBCR422_16BITS) || (sii902x->icolor_space == YCBCR422_8BITS))
+		sii902x->tpivmode[1] =
+			(((BITS_IN_YCBCR422 | BITS_IN_AUTO_RANGE) & ~BIT_EN_DITHER_10_8) & ~BIT_EXTENDED_MODE);
+	/* reg 0x0a: set output format to RGB */
+	sii902x->tpivmode[2] = 0x00;
+
+	if (fbi->var.xres/16 == fbi->var.yres/9)
+		sii902x->aspect_ratio = VMD_ASPECT_RATIO_16x9;
+	else
+		sii902x->aspect_ratio = VMD_ASPECT_RATIO_4x3;
+
+	if ((sii902x->vic == 6) || (sii902x->vic == 7) ||
+		(sii902x->vic == 21) || (sii902x->vic == 22) ||
+		(sii902x->vic == 2) || (sii902x->vic == 3) ||
+		(sii902x->vic == 17) || (sii902x->vic == 18)) {
+		sii902x->tpivmode[2] &= ~0x10; /*BT.601*/
+		sii902x->colorimetry = COLORIMETRY_601;
+		sii902x->aspect_ratio = VMD_ASPECT_RATIO_4x3;
+	} else {
+		sii902x->tpivmode[2] |= 0x10; /*BT.709*/
+		sii902x->colorimetry = COLORIMETRY_709;
+	}
+
+	if ((sii902x->vic == 10) || (sii902x->vic == 11) ||
+		(sii902x->vic == 12) || (sii902x->vic == 13) ||
+		(sii902x->vic == 14) || (sii902x->vic == 15) ||
+		(sii902x->vic == 25) || (sii902x->vic == 26) ||
+		(sii902x->vic == 27) || (sii902x->vic == 28) ||
+		(sii902x->vic == 29) || (sii902x->vic == 30) ||
+		(sii902x->vic == 35) || (sii902x->vic == 36) ||
+		(sii902x->vic == 37) || (sii902x->vic == 38))
+		sii902x->pixrep = 1;
+	else
+		sii902x->pixrep = 0;
+
+	dev_dbg(&sii902x->client->dev, "vic %d\n", sii902x->vic);
+	dev_dbg(&sii902x->client->dev, "pixrep %d\n", sii902x->pixrep);
+	if (sii902x->aspect_ratio == VMD_ASPECT_RATIO_4x3) {
+		dev_dbg(&sii902x->client->dev, "aspect 4:3\n");
+	} else {
+		dev_dbg(&sii902x->client->dev, "aspect 16:9\n");
+	}
+	if (sii902x->colorimetry == COLORIMETRY_601) {
+		dev_dbg(&sii902x->client->dev, "COLORIMETRY_601\n");
+	} else {
+		dev_dbg(&sii902x->client->dev, "COLORIMETRY_709\n");
+	}
+	dev_dbg(&sii902x->client->dev, "hdmi capbility %d\n", sii902x->edid_cfg.hdmi_cap);
+
+	sii902x->ocolor_space = RGB;
+	if (sii902x->edid_cfg.hdmi_cap) {
+		if (sii902x->edid_cfg.cea_ycbcr444) {
+			sii902x->ocolor_space = YCBCR444;
+			sii902x->tpivmode[2] |= 0x1; /*Ycbcr444*/
+		} else if (sii902x->edid_cfg.cea_ycbcr422) {
+			sii902x->ocolor_space = YCBCR422_8BITS;
+			sii902x->tpivmode[2] |= 0x2; /*Ycbcr422*/
+		}
+	}
+
+	dev_dbg(&sii902x->client->dev, "write reg 0x08 0X%2X\n", sii902x->tpivmode[0]);
+	dev_dbg(&sii902x->client->dev, "write reg 0x09 0X%2X\n", sii902x->tpivmode[1]);
+	dev_dbg(&sii902x->client->dev, "write reg 0x0a 0X%2X\n", sii902x->tpivmode[2]);
+
+	i2c_smbus_write_byte_data(sii902x->client, TPI_PIX_REPETITION, sii902x->tpivmode[0]);
+	i2c_smbus_write_byte_data(sii902x->client, TPI_INPUT_FORMAT_REG, sii902x->tpivmode[1]);
+	i2c_smbus_write_byte_data(sii902x->client, TPI_OUTPUT_FORMAT_REG, sii902x->tpivmode[2]);
+
+	/* goto state D0*/
+	sii902x_set_powerstate(sii902x, TX_POWER_STATE_D0);
+
+	if (sii902x->edid_cfg.hdmi_cap) {
+		sii902x_setAVI(sii902x);
+		sii902x_setaudio(sii902x);
+	} else {
+		/* set last byte of TPI AVI InfoFrame for TPI AVI I/O format to take effect ?? */
+		i2c_smbus_write_byte_data(sii902x->client, TPI_END_RIGHT_BAR_MSB, 0x00);
+
+		/* mute audio */
+		read_modify_tpi(sii902x->client, TPI_AUDIO_INTERFACE_REG,
+				AUDIO_MUTE_MASK, AUDIO_MUTE_MUTED);
+	}
+}
+
+#ifdef CONFIG_FB_MODE_HELPERS
+static int sii902x_read_edid(struct sii902x_data *sii902x,
+			struct fb_info *fbi)
+{
+	int old, dat, ret, cnt = 100;
+	unsigned short addr = 0x50;
+	u8 edid_old[SII_EDID_LEN];
+
+	old = i2c_smbus_read_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG);
+
+	i2c_smbus_write_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG, old | 0x4);
+	do {
+		cnt--;
+		msleep(10);
+		dat = i2c_smbus_read_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG);
+	} while ((!(dat & 0x2)) && cnt);
+
+	if (!cnt) {
+		ret = -1;
+		goto done;
+	}
+
+	i2c_smbus_write_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG, old | 0x06);
+
+	/* save old edid */
+	memcpy(edid_old, sii902x->edid, SII_EDID_LEN);
+
+	/* edid reading */
+	ret = mxc_edid_read(sii902x->client->adapter, addr,
+				sii902x->edid, &sii902x->edid_cfg, fbi);
+
+	cnt = 100;
+	do {
+		cnt--;
+		i2c_smbus_write_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG, old & ~0x6);
+		msleep(10);
+		dat = i2c_smbus_read_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG);
+	} while ((dat & 0x6) && cnt);
+
+	if (!cnt)
+		ret = -1;
+
+done:
+	i2c_smbus_write_byte_data(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG, old);
+
+	if (!memcmp(edid_old, sii902x->edid, SII_EDID_LEN))
+		ret = -2;
+	return ret;
+}
+#else
+static int sii902x_read_edid(struct sii902x_data *sii902x,
+			struct fb_info *fbi)
+{
+	return -1;
+}
+#endif
+
+static void sii902x_enable_tmds(struct sii902x_data *sii902x)
+{
+	/* goto state D0*/
+	sii902x_set_powerstate(sii902x, TX_POWER_STATE_D0);
+
+	/* Turn on DVI or HDMI */
+	if (sii902x->edid_cfg.hdmi_cap)
+		read_modify_tpi(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG,
+				OUTPUT_MODE_MASK, OUTPUT_MODE_HDMI);
+	else
+		read_modify_tpi(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG,
+				OUTPUT_MODE_MASK, OUTPUT_MODE_DVI);
+
+	read_modify_tpi(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG,
+		LINK_INTEGRITY_MODE_MASK | TMDS_OUTPUT_CONTROL_MASK | AV_MUTE_MASK,
+		LINK_INTEGRITY_DYNAMIC | TMDS_OUTPUT_CONTROL_ACTIVE | AV_MUTE_NORMAL);
+
+	i2c_smbus_write_byte_data(sii902x->client, TPI_PIX_REPETITION,
+				sii902x->tpivmode[0]);
+}
+
+static void sii902x_disable_tmds(struct sii902x_data *sii902x)
+{
+	read_modify_tpi(sii902x->client, TPI_SYSTEM_CONTROL_DATA_REG,
+		TMDS_OUTPUT_CONTROL_MASK | AV_MUTE_MASK | OUTPUT_MODE_MASK,
+		TMDS_OUTPUT_CONTROL_POWER_DOWN | AV_MUTE_MUTED | OUTPUT_MODE_DVI);
+
+	/* goto state D2*/
+	sii902x_set_powerstate(sii902x, TX_POWER_STATE_D2);
+}
+
+static void sii902x_poweron(struct sii902x_data *sii902x)
+{
+	struct fsl_mxc_lcd_platform_data *plat = sii902x->client->dev.platform_data;
+
+	dev_dbg(&sii902x->client->dev, "power on\n");
+
+	/* Enable pins to HDMI */
+	if (plat->enable_pins)
+		plat->enable_pins();
+
+	if (sii902x->rx_powerup)
+		sii902x_enable_tmds(sii902x);
+}
+
+static void sii902x_poweroff(struct sii902x_data *sii902x)
+{
+	struct fsl_mxc_lcd_platform_data *plat = sii902x->client->dev.platform_data;
+
+	dev_dbg(&sii902x->client->dev, "power off\n");
+
+	/* Disable pins to HDMI */
+	if (plat->disable_pins)
+		plat->disable_pins();
+
+	if (sii902x->rx_powerup)
+		sii902x_disable_tmds(sii902x);
+}
+
+static void sii902x_rx_powerup(struct sii902x_data *sii902x)
+{
+
+	dev_dbg(&sii902x->client->dev, "rx power up\n");
+
+	if (sii902x->need_mode_change) {
+		sii902x->fbi->var.activate |= FB_ACTIVATE_FORCE;
+		console_lock();
+		sii902x->fbi->flags |= FBINFO_MISC_USEREVENT;
+		fb_set_var(sii902x->fbi, &sii902x->fbi->var);
+		sii902x->fbi->flags &= ~FBINFO_MISC_USEREVENT;
+		console_unlock();
+		sii902x->need_mode_change = false;
+	}
+
+	sii902x_enable_tmds(sii902x);
+
+	sii902x->rx_powerup = true;
+}
+
+static void sii902x_rx_powerdown(struct sii902x_data *sii902x)
+{
+	dev_dbg(&sii902x->client->dev, "rx power down\n");
+
+	sii902x_disable_tmds(sii902x);
+
+	sii902x->rx_powerup = false;
+}
+
+static int sii902x_cable_connected(struct sii902x_data *sii902x)
+{
+	int ret;
+
+	dev_dbg(&sii902x->client->dev, "cable connected\n");
+
+	sii902x->cable_plugin = true;
+
+	/* edid read */
+	ret = sii902x_read_edid(sii902x, sii902x->fbi);
+	if (ret == -1)
+		dev_err(&sii902x->client->dev,
+				"read edid fail\n");
+	else if (ret == -2)
+		dev_info(&sii902x->client->dev,
+				"same edid\n");
+	else {
+		if (sii902x->fbi->monspecs.modedb_len > 0) {
+			int i;
+			const struct fb_videomode *mode;
+			struct fb_videomode m;
+
+			fb_destroy_modelist(&sii902x->fbi->modelist);
+
+			for (i = 0; i < sii902x->fbi->monspecs.modedb_len; i++) {
+				/*FIXME now we do not support interlaced mode */
+				if (!(sii902x->fbi->monspecs.modedb[i].vmode & FB_VMODE_INTERLACED))
+					fb_add_videomode(&sii902x->fbi->monspecs.modedb[i],
+							&sii902x->fbi->modelist);
+			}
+
+			fb_var_to_videomode(&m, &sii902x->fbi->var);
+			mode = fb_find_nearest_mode(&m,
+					&sii902x->fbi->modelist);
+
+			fb_videomode_to_var(&sii902x->fbi->var, mode);
+			sii902x->need_mode_change = true;
+		}
+	}
+
+	/* ?? remain it for control back door register */
+	read_modify_idx_reg(sii902x->client, INDEXED_PAGE_0, 0x0a, 0x08, 0x08);
+
+	return 0;
+}
+
+static void sii902x_cable_disconnected(struct sii902x_data *sii902x)
+{
+	dev_dbg(&sii902x->client->dev, "cable disconnected\n");
+	sii902x_rx_powerdown(sii902x);
+	sii902x->cable_plugin = false;
+}
+
+static void det_worker(struct work_struct *work)
+{
+	struct delayed_work *delay_work = to_delayed_work(work);
+	struct sii902x_data *sii902x =
+		container_of(delay_work, struct sii902x_data, det_work);
+	int status;
+	char event_string[16];
+	char *envp[] = { event_string, NULL };
+
+	status = i2c_smbus_read_byte_data(sii902x->client, TPI_INTERRUPT_STATUS_REG);
+
+	/* check cable status */
+	if (status & HOT_PLUG_EVENT) {
+		/* cable connection changes */
+		if ((status & HOT_PLUG_STATE) != sii902x->cable_plugin) {
+			if (status & HOT_PLUG_STATE) {
+				sprintf(event_string, "EVENT=plugin");
+				sii902x_cable_connected(sii902x);
+			} else {
+				sprintf(event_string, "EVENT=plugout");
+				sii902x_cable_disconnected(sii902x);
+			}
+			kobject_uevent_env(&sii902x->pdev->dev.kobj, KOBJ_CHANGE, envp);
+		}
+	}
+
+	/* check rx power */
+	if (((status & RX_SENSE_STATE) >> 3) != sii902x->rx_powerup) {
+		if (sii902x->cable_plugin) {
+			if (status & RX_SENSE_STATE)
+				sii902x_rx_powerup(sii902x);
+			else
+				sii902x_rx_powerdown(sii902x);
+		}
+	}
+
+	/* clear interrupt pending status */
+	i2c_smbus_write_byte_data(sii902x->client, TPI_INTERRUPT_STATUS_REG, status);
+}
+
+static irqreturn_t sii902x_detect_handler(int irq, void *data)
+{
+	struct sii902x_data *sii902x = data;
+
+	schedule_delayed_work(&(sii902x->det_work), msecs_to_jiffies(20));
+
+	return IRQ_HANDLED;
+}
+
+static int sii902x_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+	struct fb_event *event = v;
+	struct fb_info *fbi = event->info;
+	struct sii902x_data *sii902x = container_of(nb, struct sii902x_data, nb);
+
+	if (strcmp(event->info->fix.id, sii902x->fbi->fix.id))
+		return 0;
+
+	switch (val) {
+	case FB_EVENT_MODE_CHANGE:
+		sii902x_setup(sii902x, fbi);
+		break;
+	case FB_EVENT_BLANK:
+		if (*((int *)event->data) == FB_BLANK_UNBLANK)
+			sii902x_poweron(sii902x);
+		else
+			sii902x_poweroff(sii902x);
+		break;
+	}
+	return 0;
+}
+
+static int sii902x_TPI_init(struct i2c_client *client)
+{
+	struct fsl_mxc_lcd_platform_data *plat = client->dev.platform_data;
+	u8 devid = 0;
+	u16 wid = 0;
+
+	if (plat->reset)
+		plat->reset();
+
+	/* sii902x back door register - Set terminations to default */
+	i2c_smbus_write_byte_data(client, 0x82, 0x25);
+	/* sii902x back door register - HW debounce to 64ms (0x14) */
+	i2c_smbus_write_byte_data(client, 0x7c, 0x14);
+
+	/* Set 902x in hardware TPI mode on and jump out of D3 state */
+	if (i2c_smbus_write_byte_data(client, TPI_ENABLE, 0x00) < 0) {
+		dev_err(&client->dev,
+			"cound not find device\n");
+		return -ENODEV;
+	}
+
+	msleep(100);
+
+	/* read device ID */
+	devid = read_idx_reg(client, INDEXED_PAGE_0, 0x03);
+	wid = devid;
+	wid <<= 8;
+	devid = read_idx_reg(client, INDEXED_PAGE_0, 0x02);
+	wid |= devid;
+	devid = i2c_smbus_read_byte_data(client, TPI_DEVICE_ID);
+
+	if (devid == 0xB0)
+		dev_info(&client->dev, "found device %04X", wid);
+	else {
+		dev_err(&client->dev, "cound not find device\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int sii902x_disp_init(struct mxc_dispdrv_entry *disp)
+{
+	int ret = 0;
+	struct sii902x_data *sii902x = mxc_dispdrv_getdata(disp);
+	struct mxc_dispdrv_setting *setting = mxc_dispdrv_getsetting(disp);
+	struct fsl_mxc_lcd_platform_data *plat = sii902x->client->dev.platform_data;
+	bool found = false;
+	static bool inited;
+
+	if (inited)
+		return -EBUSY;
+
+	inited = true;
+
+	setting->dev_id = plat->ipu_id;
+	setting->disp_id = plat->disp_id;
+	setting->if_fmt = IPU_PIX_FMT_RGB24;
+
+	sii902x->fbi = setting->fbi;
+	sii902x->power_state = TX_POWER_STATE_D2;
+	sii902x->icolor_space = RGB;
+	sii902x->audio_mode = AMODE_SPDIF;
+	sii902x->audio_channels = ACHANNEL_2CH;
+
+	sii902x->pdev = platform_device_register_simple("sii902x", 0, NULL, 0);
+	if (IS_ERR(sii902x->pdev)) {
+		dev_err(&sii902x->client->dev,
+				"Unable to register Sii902x as a platform device\n");
+		ret = PTR_ERR(sii902x->pdev);
+		goto register_pltdev_failed;
+	}
+
+	if (plat->io_reg) {
+		sii902x->io_reg = regulator_get(&sii902x->client->dev, plat->io_reg);
+		if (!IS_ERR(sii902x->io_reg)) {
+			regulator_set_voltage(sii902x->io_reg, 3300000, 3300000);
+			regulator_enable(sii902x->io_reg);
+		}
+	}
+	if (plat->analog_reg) {
+		sii902x->analog_reg = regulator_get(&sii902x->client->dev, plat->analog_reg);
+		if (!IS_ERR(sii902x->analog_reg)) {
+			regulator_set_voltage(sii902x->analog_reg, 1300000, 1300000);
+			regulator_enable(sii902x->analog_reg);
+		}
+	}
+
+	/* Claim HDMI pins */
+	if (plat->get_pins)
+		if (!plat->get_pins()) {
+			ret = -EACCES;
+			goto get_pins_failed;
+		}
+
+	ret = sii902x_TPI_init(sii902x->client);
+	if (ret < 0)
+		goto init_failed;
+
+	/* try to read edid */
+	ret = sii902x_read_edid(sii902x, sii902x->fbi);
+	if (ret < 0)
+		dev_warn(&sii902x->client->dev, "Can not read edid\n");
+	else {
+		INIT_LIST_HEAD(&sii902x->fbi->modelist);
+		if (sii902x->fbi->monspecs.modedb_len > 0) {
+			int i;
+			const struct fb_videomode *mode;
+			struct fb_videomode m;
+
+			for (i = 0; i < sii902x->fbi->monspecs.modedb_len; i++) {
+				/*FIXME now we do not support interlaced mode */
+				if (!(sii902x->fbi->monspecs.modedb[i].vmode
+							& FB_VMODE_INTERLACED))
+					fb_add_videomode(
+							&sii902x->fbi->monspecs.modedb[i],
+							&sii902x->fbi->modelist);
+			}
+
+			fb_find_mode(&sii902x->fbi->var, sii902x->fbi, setting->dft_mode_str,
+					NULL, 0, NULL, setting->default_bpp);
+
+			fb_var_to_videomode(&m, &sii902x->fbi->var);
+			mode = fb_find_nearest_mode(&m,
+					&sii902x->fbi->modelist);
+			fb_videomode_to_var(&sii902x->fbi->var, mode);
+			found = true;
+		}
+
+	}
+
+	if (!found) {
+		ret = fb_find_mode(&sii902x->fbi->var, sii902x->fbi, setting->dft_mode_str,
+				NULL, 0, NULL, setting->default_bpp);
+		if (!ret) {
+			ret = -EINVAL;
+			goto find_mode_failed;
+		}
+	}
+
+	if (sii902x->client->irq) {
+		ret = request_irq(sii902x->client->irq, sii902x_detect_handler,
+				IRQF_TRIGGER_FALLING,
+				"SII902x_det", sii902x);
+		if (ret < 0)
+			dev_warn(&sii902x->client->dev,
+				"cound not request det irq %d\n",
+				sii902x->client->irq);
+		else {
+			/*enable cable hot plug irq*/
+			i2c_smbus_write_byte_data(sii902x->client,
+					TPI_INTERRUPT_ENABLE_REG,
+					HOT_PLUG_EVENT | RX_SENSE_EVENT);
+			INIT_DELAYED_WORK(&(sii902x->det_work), det_worker);
+			/*clear hot plug event status*/
+			i2c_smbus_write_byte_data(sii902x->client,
+					TPI_INTERRUPT_STATUS_REG,
+					HOT_PLUG_EVENT | RX_SENSE_EVENT);
+		}
+
+		ret = device_create_file(&sii902x->pdev->dev, &dev_attr_fb_name);
+		if (ret < 0)
+			dev_warn(&sii902x->client->dev,
+				"cound not create sys node for fb name\n");
+		ret = device_create_file(&sii902x->pdev->dev, &dev_attr_cable_state);
+		if (ret < 0)
+			dev_warn(&sii902x->client->dev,
+				"cound not create sys node for cable state\n");
+		ret = device_create_file(&sii902x->pdev->dev, &dev_attr_edid);
+		if (ret < 0)
+			dev_warn(&sii902x->client->dev,
+				"cound not create sys node for edid\n");
+
+		dev_set_drvdata(&sii902x->pdev->dev, sii902x);
+	}
+
+	sii902x->nb.notifier_call = sii902x_fb_event;
+	ret = fb_register_client(&sii902x->nb);
+	if (ret < 0)
+		goto reg_fbclient_failed;
+
+	return ret;
+
+reg_fbclient_failed:
+find_mode_failed:
+init_failed:
+get_pins_failed:
+	platform_device_unregister(sii902x->pdev);
+register_pltdev_failed:
+	return ret;
+}
+
+static void sii902x_disp_deinit(struct mxc_dispdrv_entry *disp)
+{
+	struct sii902x_data *sii902x = mxc_dispdrv_getdata(disp);
+	struct fsl_mxc_lcd_platform_data *plat = sii902x->client->dev.platform_data;
+
+	if (sii902x->client->irq)
+		free_irq(sii902x->client->irq, sii902x);
+
+	fb_unregister_client(&sii902x->nb);
+
+	sii902x_poweroff(sii902x);
+
+	/* Release HDMI pins */
+	if (plat->put_pins)
+		plat->put_pins();
+
+	platform_device_unregister(sii902x->pdev);
+
+	kfree(sii902x);
+}
+
+static struct mxc_dispdrv_driver sii902x_drv = {
+	.name 	= DISPDRV_SII,
+	.init 	= sii902x_disp_init,
+	.deinit	= sii902x_disp_deinit,
+};
+
+static int __devinit sii902x_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	struct sii902x_data *sii902x;
+	int ret = 0;
+
+	if (!i2c_check_functionality(client->adapter,
+				I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C))
+		return -ENODEV;
+
+	sii902x = kzalloc(sizeof(struct sii902x_data), GFP_KERNEL);
+	if (!sii902x) {
+		ret = -ENOMEM;
+		goto alloc_failed;
+	}
+
+	sii902x->client = client;
+
+	sii902x->disp_hdmi = mxc_dispdrv_register(&sii902x_drv);
+	mxc_dispdrv_setdata(sii902x->disp_hdmi, sii902x);
+
+	i2c_set_clientdata(client, sii902x);
+
+alloc_failed:
+	return ret;
+}
+
+static int __devexit sii902x_remove(struct i2c_client *client)
+{
+	struct sii902x_data *sii902x = i2c_get_clientdata(client);
+
+	mxc_dispdrv_unregister(sii902x->disp_hdmi);
+	kfree(sii902x);
+	return 0;
+}
+
+static const struct i2c_device_id sii902x_id[] = {
+	{ "sii902x", 0 },
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, sii902x_id);
+
+static struct i2c_driver sii902x_i2c_driver = {
+	.driver = {
+		   .name = "sii902x",
+		   },
+	.probe = sii902x_probe,
+	.remove = sii902x_remove,
+	.id_table = sii902x_id,
+};
+
+static int __init sii902x_init(void)
+{
+	return i2c_add_driver(&sii902x_i2c_driver);
+}
+
+static void __exit sii902x_exit(void)
+{
+	i2c_del_driver(&sii902x_i2c_driver);
+}
+
+module_init(sii902x_init);
+module_exit(sii902x_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("SII902x DVI/HDMI driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index fd5f2b37b18..7d5ee84d34b 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -164,4 +164,18 @@ struct fsl_mxc_tve_platform_data {
 	char *dig_reg;
 };
 
+struct fsl_mxc_lcd_platform_data {
+	char *io_reg;
+	char *core_reg;
+	char *analog_reg;
+	void (*reset) (void);
+	int (*get_pins) (void);
+	void (*put_pins) (void);
+	void (*enable_pins) (void);
+	void (*disable_pins) (void);
+	int default_ifmt;
+	int ipu_id;
+	int disp_id;
+};
+
 #endif /* _FSL_DEVICE_H_ */